CAJ | 학술논문

采用共沉淀法在紊流循环方式下制备超细磷酸锂的一种新工艺，探索了氢氧化锂和磷酸在紊流循环釜中制备超细磷酸锂的反应条件，用X射线粉末衍射、激光粒度仪、扫描电镜、比表面及孔隙分析仪及热分析仪对产物的晶体结构、粒度分布、外观形貌、比表面积以及热稳定性进行了表征。结果表明该方法制得的磷酸锂热稳定性好，粒度分布窄（D50=3.25μm），比表面积（BET）为13.38 m2·g-1，为一种分散均匀的超细粉体材料，可望成为一种高活性的锂离子电池正极材料原材料或电解质添加剂。
채용공침정법재문류순배방식하제비초세린산리적일충신공예，탐색료경양화리화린산재문류순배부중제비초세린산리적반응조건，용X사선분말연사、격광립도의、소묘전경、비표면급공극분석의급열분석의대산물적정체결구、립도분포、외관형모、비표면적이급열은정성진행료표정。결과표명해방법제득적린산리열은정성호，립도분포착（D50=3.25μm），비표면적（BET）위13.38 m2·g-1，위일충분산균균적초세분체재료，가망성위일충고활성적리리자전지정겁재료원재료혹전해질첨가제。
A new technology is proposed for the preparation of lithium phosphate by the co-precipitation method in a turbulent flow cycle equipment. The reaction conditions of lithium hydroxide and phosphoric acid in turbulent flow circulation kettle for the preparation of super-fine lithium phosphate were investigated. X-Ray powder diffraction (XRD), laser granularity instrument, scanning electron microscopy (SEM), specific surface and porosity analyzer and thermal analyzer were used to characterize the crystal structure, particle size distribution, morphology, specific surface area and thermal stability of the products. The lithium phosphate prepared by this method had good thermal stability, a narrow particle size distribution of D50=3.25μm, and a specific BET surface of 13.38 m2·g-1. As a uniformly dispersed super-fine powder material, the lithium phosphate is expected to be a highly active raw material of cathode materials for lithium ion battery or an additive for lithium ion battery electrolyte.